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Finding the Fourth Proportional to 81,647,999.60, 122,471,999.40 and 24,135,148.40

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Solution

The fourth proportional to 81,647,999.60, 122,471,999.40 and 24,135,148.40 is: 36,202,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,647,999.60 : 122,471,999.40 = 24,135,148.40 : x
  2. Step 2: Convert to fraction form
    81,647,999.60/122,471,999.40 = 24,135,148.40/x
  3. Step 3: Cross multiply
    81,647,999.60x = 122,471,999.40 × 24,135,148.40
  4. Step 4: Simplify right side
    81,647,999.60x = 2,955,879,880,363,711
  5. Step 5: Solve for x
    x = 2,955,879,880,363,711/81,647,999.60
  6. Step 6: Final answer
    x = 36,202,722.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.